| Brand | ROCKWILL |
| Model NO. | SG Series Three-phase Air-immersed Transformer |
| Rated capacity | 300kVA |
| Primary voltage | 400V |
| Secondary voltage | 220V |
| Series | SG Series |
The transformers have two body types: exposed and fence. It has the advantage of low consumption, low noise, better performance against fire and free of pollution etc. The shell of the protective type is made of steel plate, the transformer is in the shell. There are several holes outside the shell to inter of the power lines in addition, this type can add the monitor meter of the voltage and current according to the customer's request or wheel for moving. If the capacity is above 80KVA, it can also add the axial flow fan. And if the capacity
SG series Three-phase Air-immersed Transformer, is natural cooling indoor, it is applicable to the circuit of AC 50Hz~60Hz, 1000V and below, it can be use in control, power machine-tool and medical equipment small type power as well as work lighting and signal lamp power.
| Item | Standard Value |
|---|---|
| Rated capacity | 0.5kVA ~ 3000kVA |
| Rated frequency | 50Hz / 60Hz |
| Cooling mode | AN (natural air cooling); optional AF (forced air cooling) |
| Insulation class | F class (common), H class (high temperature environment) |
| Temperature rise limit | 100K (F class); 125K (H class) |
| Vector group | Dyn11 (main), Yyn0, Dd0 |
| Short-circuit impedance | 4% / 6% |
| Protection grade | IP00 (bare unit), IP20 (with cabinet) |
| Normal working environment | Ambient temp: -5℃ ~ +40℃; Altitude ≤1000m; No condensation & corrosive gas |
If you need to know about more parameters , Please check the model selection manual.↓↓↓
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